zswap.c (97157d8908bc10dec22cc4479f4c5cc7db58a12c) zswap.c (3d2c908768877714a354ee6d7bf93e801400d5e2)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * zswap.c - zswap driver file
4 *
5 * zswap is a cache that takes pages that are in the process
6 * of being swapped out and attempts to compress and store them in a
7 * RAM-based memory pool. This can result in a significant I/O reduction on
8 * the swap device and, in the case where decompressing from RAM is faster

--- 1176 unchanged lines hidden (view full) ---

1185 unsigned long *page;
1186
1187 page = (unsigned long *)ptr;
1188 memset_l(page, value, PAGE_SIZE / sizeof(unsigned long));
1189}
1190
1191bool zswap_store(struct folio *folio)
1192{
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * zswap.c - zswap driver file
4 *
5 * zswap is a cache that takes pages that are in the process
6 * of being swapped out and attempts to compress and store them in a
7 * RAM-based memory pool. This can result in a significant I/O reduction on
8 * the swap device and, in the case where decompressing from RAM is faster

--- 1176 unchanged lines hidden (view full) ---

1185 unsigned long *page;
1186
1187 page = (unsigned long *)ptr;
1188 memset_l(page, value, PAGE_SIZE / sizeof(unsigned long));
1189}
1190
1191bool zswap_store(struct folio *folio)
1192{
1193 swp_entry_t swp = folio_swap_entry(folio);
1193 swp_entry_t swp = folio->swap;
1194 int type = swp_type(swp);
1195 pgoff_t offset = swp_offset(swp);
1196 struct page *page = &folio->page;
1197 struct zswap_tree *tree = zswap_trees[type];
1198 struct zswap_entry *entry, *dupentry;
1199 struct scatterlist input, output;
1200 struct crypto_acomp_ctx *acomp_ctx;
1201 struct obj_cgroup *objcg = NULL;

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1365 pool = zswap_pool_last_get();
1366 if (pool)
1367 queue_work(shrink_wq, &pool->shrink_work);
1368 goto reject;
1369}
1370
1371bool zswap_load(struct folio *folio)
1372{
1194 int type = swp_type(swp);
1195 pgoff_t offset = swp_offset(swp);
1196 struct page *page = &folio->page;
1197 struct zswap_tree *tree = zswap_trees[type];
1198 struct zswap_entry *entry, *dupentry;
1199 struct scatterlist input, output;
1200 struct crypto_acomp_ctx *acomp_ctx;
1201 struct obj_cgroup *objcg = NULL;

--- 163 unchanged lines hidden (view full) ---

1365 pool = zswap_pool_last_get();
1366 if (pool)
1367 queue_work(shrink_wq, &pool->shrink_work);
1368 goto reject;
1369}
1370
1371bool zswap_load(struct folio *folio)
1372{
1373 swp_entry_t swp = folio_swap_entry(folio);
1373 swp_entry_t swp = folio->swap;
1374 int type = swp_type(swp);
1375 pgoff_t offset = swp_offset(swp);
1376 struct page *page = &folio->page;
1377 struct zswap_tree *tree = zswap_trees[type];
1378 struct zswap_entry *entry;
1379 struct scatterlist input, output;
1380 struct crypto_acomp_ctx *acomp_ctx;
1381 u8 *src, *dst, *tmp;

--- 246 unchanged lines hidden --- 		1374 int type = swp_type(swp);
1375 pgoff_t offset = swp_offset(swp);
1376 struct page *page = &folio->page;
1377 struct zswap_tree *tree = zswap_trees[type];
1378 struct zswap_entry *entry;
1379 struct scatterlist input, output;
1380 struct crypto_acomp_ctx *acomp_ctx;
1381 u8 *src, *dst, *tmp;

--- 246 unchanged lines hidden ---